package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        // select * from pms_attr_group where catelog_id=? and (attr_group_id = key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> queryWrapper = new QueryWrapper<>();
        if (StringUtils.hasText(key)) {
            queryWrapper.and((obj) -> obj.eq("attr_group_id", key).or().like("attr_group_name", key));
        }
        if (catelogId != 0) {
            queryWrapper.eq("catelog_id", catelogId);
        }
        IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), queryWrapper);
        return new PageUtils(page);
    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        // 1、查出分组信息
        List<AttrGroupEntity> groupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        // 2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = groupEntities.stream().map(item -> {
            AttrGroupWithAttrsVo groupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(item, groupWithAttrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(groupWithAttrsVo.getAttrGroupId());
            groupWithAttrsVo.setAttrs(attrs);
            return groupWithAttrsVo;
        }).collect(Collectors.toList());
        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catelogId) {
        List<SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catelogId);
        return vos;
    }

}